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Data centers in Athens

Athens has 3 data centers listed on DataColoc, operated notably by Synapsecom Telecoms S.A., National Infrastructures for Research and Technology (GRNET), Lancom Ltd. Compare colocation (rack, half-rack, 1U), pricing, certifications and connectivity, then get an instant costed estimate.

Server colocation in Athens (server housing) means installing your own servers in a rack or cabinet (42U) inside a secure data center: redundant power, cooling, 24/7 security and multi-carrier connectivity. DataColoc lists 3 data centers offering colocation in Athens, including Synapsecom Telecoms S.A., National Infrastructures for Research and Technology (GRNET), Lancom Ltd.

Frequently asked questions

How much does a rack (colocation) cost in Athens?

a full rack is priced on electrical power (kVA), IP transit and cross-connects. Compare the 3 data centers in Athens to get a costed quote.

What is the difference between housing and colocation?

None: “housing” and “colocation” mean the same thing — hosting your own servers in a third-party data center, as opposed to renting a dedicated server or public cloud.

Which data centers in Athens are ISO 27001 certified?

Filter by certification (ISO 27001, HDS, PCI-DSS) in the comparator to keep only compliant sites.

Learn the basics: colocation, 42U rack, cross-connect, IP transit, Tier III/IV.

Costed answers: how much does a rack cost?, cross-connect pricing, colocation or cloud? — and the colocation price barometer.

What does a rack in Athens really cost?

Beyond listed prices, here is the computed cost of a standard 5 kW rack in Athens, from our open market model (published method, version 2026.07-v1):

ItemEstimate
5 kW rack, per month€975 – €1,183
Cost per kW per month€173 – €211
Over 3 years (36 months)€35,100 – €42,588

What this covers: local industrial energy tariff, site efficiency (PUE), retail colocation margin and local market tightness. What it does not: IP transit, cross-connects, setup fees and PDUs — priced site by site in the comparator.

An estimate, not an offer. It is a model, with an open method and a version — not a contractual rate. A quote prices your actual configuration. Think the model is wrong? The method is published: tell us where.

Compare data centers in Athens →

Synapsecom SNC-2 Athens

Synapsecom Telecoms S.A. · 13341
Sovereign (outside US CLOUD Act)10 networks present
on quote

Εθνικό Ίδρυμα Ερευνών / National Hellenic Research Foundation (EIE/NHRF)

National Infrastructures for Research and Technology (GRNET) · 11635
Sovereign (outside US CLOUD Act)1 networks present
on quote

Lancom Athens DC

Lancom Ltd · 15125
Sovereign (outside US CLOUD Act)14 networks present
on quote

What Athens allows

Athens has 3 data centers, operated by Synapsecom Telecoms S.A., National Infrastructures for Research and Technology (GRNET), Lancom Ltd.

Connectivity from Athens

14 networks are listed at the sites in Athens according to public interconnection registries. That number drives your negotiating power: every carrier inside the building is one more quote, with no civil works. 2 Internet exchange points are reachable from these sites, which cuts latency to the large content networks and the cost of transit. The large networks reachable directly from these sites, without buying transit, are Amazon Web Services, Google, Hetzner, Microsoft Azure, OVHcloud, Meta, Akamai, Cloudflare: they are present at the exchange points where 2 of the 3 sites in the city are points of presence. Reaching your cloud over an exchange point rather than the public Internet changes latency, and above all the price of data egress.

Compliance and sovereignty

Sites in this city are operated by companies outside US jurisdiction, hence outside the CLOUD Act.

The electricity behind Athens

A city has no electricity of its own: the sites in Athens are connected to the national grid, itself interconnected with its neighbours. What is measured, and what decides, is therefore the country's generation mix. No single source dominates it: the largest, natural gas, supplies only 38.4% (2025). The detail: natural gas 38.4%, solar 22.2%, wind 20.4%, oil (fuel oil, diesel) 7.2%, hydro 5.9%, coal 4.7%. Fossil fuels (coal, gas, oil) account for 50.3% of it. A kilowatt-hour there weighs 315 g of CO2, i.e. 1.5 times less than the world average (458 g), 2025 figure. Concretely: a 3 kVA rack, in a site with a PUE of 1.5, draws 35,478 kWh a year and therefore emits 11.2 tonnes of CO2 a year here. The same rack, same hardware, same PUE, would emit 16 tonnes on a world-average grid. The building has nothing to do with it: the country does.

Source: Ember / Energy Institute via Our World in Data, retrieved 2026-09-14. A site under a direct renewable purchase agreement may show a different balance: that is for the operator to declare.

What the ground has done under Athens

Since 1970, 26 earthquakes of magnitude 5 or above have been recorded within 100 km of Athens, and 106 within 200 km. The strongest: magnitude 7.2 in 1981, 182 km away. This record covers 56 years, which is short on a seismic timescale: no recorded earthquake does not mean no hazard. It does not replace the statutory zoning, which alone binds construction.

Source: U.S. Geological Survey, ANSS ComCat, retrieved 2026-09-14. Measured from the median coordinates of the city's sites.

What Athens does not allow

No rate is published by the operators in this city: pricing is on request, and we do not estimate it on their behalf.

Other cities with data centers near Athens

The nearest site outside Athens is 4 km away, in Marousi. Short distances matter: they drive the cost of a link between two buildings, and whether a backup site is workable.

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